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Jan 12 in Big Data | Hadoop
Q: What is the Data Model of HCatalog?

1 Answer

Jan 12
HCatalog has same datatypes as Hive. We can create tables in HCatalog to store data. These tables can be placed in a Database.

We can also partition HCatalog tables based on a Hash. There are multiple dimensions in a HCatalog partition.

There are records in a partition. Once a partition is created, we

 

cannot add or remove records into it.

Records are divided into columns. Each column has a name and a datatype.

Overall, HCatalog data model is similar to Relational Data Model.
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